If any recipe will change your mind about beetroots in sweet-baked goods, this one will. Dutch cocoa powder is an absolute must in this recipe! Varlhona and Van Houten make two dark dutch cocoa powders highly recommended. As gluten-free plain flours vary, you may need to add a couple of tablespoons of non-dairy milk to this recipe, just so everything binds well and becomes a firm cake batter.